Furnace



Patented Jan. 13, 1925.

- UNITED STATES: ATENT OFFICE.

wa A." HA LECK, or onioaeo, rttrnors; nss enon To SULLIVAN MACHINERY COMPANY, A oonronn'rrolt or MAss cHUsETTs,

FURNACE Application filed August 8, 1922. Serial No. 580,550.

To all whom it may concern. j Be it known that I, FRANK A. HA LnoK, a citizen of the United States, residing at Chicago, in the county 0t Cook and State of Illinois, have invented certain new andquseful Improvements in Furnaces, ,ot,wh1c h the following is a full, clear, and exact specification.

" My inventionrelates to furnaces;

It has for its object to provide, an improved furnace, and more especially-an oil a or gas furnace, wherein the size ofthe combustion chamber may be adjustedas desired,

' and whereby, as" a result, reducing -the size of the combustion chamber after the furnace has been heated, a more efiective operationof the furnace may be obtained. if In the accompanying drawings I have shown for purposes of lllustration oneuembodiment which my invention, may assume in practice. 7 j l V a-In these drawings f Fig; 1 is-a transverse sectionalv view of a furnace equipped with my improvement,

showing the combustion chamber adjusted todifierent sizes} 3 v j j Fig. 2 is adetailview showing theadjustable element and the means for holding the same in adjusted position. t

I have 'In this illustrative construction shown a furnace of the type invented by. one Sven T. Nelson and utilized .for heating a series of blanks, the same comprising a suitable frame 1v having a substantially enclosed combustion chamber 2 therein provided with a restricted fiueat the top thereof and an oil burner 3 discharging into, said chamber through one wall of the same andadjacent a blank stack 4, suitable mechanism including an ejector rod 5 being used to push out the bottom blank from the stackras desired,

and improved means being provided to vary thesize of the chamber ashereinafter described. a v

In my improved construction, it will, be observed that the chamber 2 is provided with an adjustable wall in the formof a deflector, hereinthe wall 6, oppositejthe burner 3,and that this wall is pivotedzatjf atits bottom in such manner as to enable itfto be moved about its pivot from the fulljaline po- ,sition indicated in Fig, 1.to the position indicated in dottedlines in that figure, and thereby materially restrict thesize ofjthe combustion. chamber, any suitable means,

bustion is proceeding smoothly," the Ycombustion chamber may be reducedlin size in such manner-as to permit of increased effectiveness in operation and the concentration of the heat upon the objector objects to be heated. For example, in the construction shown, it will be noted that the heat isthus concentrated upon the blanks, all necessity forheating theentire volume of thechamber being obviated. These and-other resultant advantages will, however, be clearly apparent, to those skilledin the art.

-While lhave in this application specifi- Q cally described one embodiment which my invention may assume in practice, it will be understood that this form ofithe same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from, its spirit or the scopeof the appended claims.

",What I claim as new and desireto secure by LettersPatent is: i a i v 1. A furnace including a combustion chamber and a fiue, and"means to vary the size of said chamber to vary the temperature therein without varying the size of said flue.

2. A .furnace including a, combustion chamber and a flue, said chamber having a POI tlOH thereof pivoted in such manner-as to permit adjustment to vary the size of said chamber to vary the temperaturetherein without varying the size ofsaid flue,

3. Afurnace includin closed combustion chaniber anda flue, said chamber having one wall thereofpivoted in suchmanner as to permit adjustment to decreasethe size of said chamber, to vary the temperature therein wlthout varying the slzeof said flue.

4 1A furnace including (a combustion chamber having a burner 1n one wall therei asubstantially enof and the wall opposite said burner adjustable to decrease the size oft-said chamber to varythe temperature thereinr 5. A furnace including a substantiallyj. enclosed combustion chamber and a line saidchamber having a burner discharging into the same, and a wall pivoted at one edge and movable about its pivot to deing the size of said fine.

V i e. A furnace including a substantially 811- closed combustion chamber and a fine, said chamber having a burner discharginginto the same, and an a i right wall pivoted atgits lower edge and a iustable todecrease the I size'of said combustion chamber at willto vary thetemperature therein without vary in the size ofsaid flue. 1

A furnace includin a substantiallyenclosed combustioncham er and a" flue, said i chamber, having iburner discharging-into the sameyand a wall pivoted at one edge and adjustable to decrease the size of said combustion chamber at will to vary 'the temperaturetherein without varying the sizel'ofsaid flue, and means for holding said Well in adjusted position. V

furnace including a combustion chamber having a burner discharging into 3 the same, work holding meansdisposedin said chambemand means to vary the size raining a predetermined in the heating zone.

of said chamber to concentrate the heat on the work.

9. A furnaceincludin a substantially enclosed combustion cham er having a burner dischargin into the same, work supporting "means, an means to vary the effectiveness ofsaid burner inheating said chamber by diminishing the size of the latter while reportion if the work *10.A furnace including a substantially enclosed combustion chamber having "a burner discharging into the same, work supporting means, and means to vary the area of said chamber adjustable to vary the 'sizeof the top of said chamber while i re t'ain'ing a predetermined portion of the work in t'heheating zonep 1 -11". A furnace including a substantially enclosed combustion chamber having a burner discharging into the same, work supporting means, and a member in said chamber adjustable to' vary theeffectiveness of said burner in heating said chamber after "thelatter has been brought up to heat while retaining a predetermined portion of the "work in theheatingz'one.

l2; A" furnace including a substantially 'ienclosed combustion chamber having a burner "discharging into the same, and a deflector in said chamber disposed opposite said burner adjustable to vary the effectiveness-of saidburner in heating said chamber after the latter has been brought up toheat.

l3. A. furnace; including I asubstantially enclosed combustion chamber having a burner discharging into the same, work holding means nrsaid chamber OJPOSllZQ said burner; and-means to vary the e ectiveness of said burner in heating said chamber the chamber has been brought up to heat.

14:, A furnace including a combustion chamber having a burner discharging into the same, work holding means in said chamber,a-nd i1 deflector opposite said burner to vary theefi 'ectiveness of said burner in heatingsaid chamber and concentrate the heat on the work after-the chamber 'haslbeen brought up to heat.

15. A furnace 1 including a substantially enclosed combustion chamber having a and concentrate the heat on the work after crease the size of said chamber at will to vary the temperature thereinwwithout varyable to decrease'the size of said chamber at will to vary the temperature therein:

17 A furnace includin 21', combustion chamber having a burner discharging there in, a wall pivoted at one ed e 8.1].dild1ll5tflbl9 to decrease the size of said chamber at will to vary the temperature therein, and means including a-reciprocable member forholding said wall in its adjusted positions. 18. A furnace includinga substantially enclosed combustion chamber having a rc-,

stricted flue, and an adjustable'jelem'entto decrease the area of said chamber to vary the temperature therein without varying the size of said flue. J 7 19. A furnace including a substantially enclosed combustion chamber having a restricted' flaeanda burner discharging theie in, and an adjustable element opposite said burner to decrease thejarea of saidchambar to vary the temperature therein without varying the size of saidflue'. 20. A""furnacehaving a substantially enclosed combustion chaml'ier and a blan stack support therein, and an adjustable blank stack support to vary the temperature of the blanks in said stack; .7

Q-LiYfu'rnace havin a substantially enclosed combustion chamber and a burner dis- 120 ,member movable in a direction toward said charging therein, a blankstack support/in said chamber, andan adjustable member movable in'a direction toward said burner and said-"blank stack support to increase the temperature of the blanks in said stack."

enclosed combustionchamber provided with a restricted flue and having an adjustable element movable to vary the size of said chamber to vary the temperature therein without varying the size of said flue.

In testimony whereof Iaflix my signature.

FRANK A. HALLECK. 

